vi /etc/systemd/system/registry-schema.service
[Unit]
Description=Hortonwork Registry Schema Service
After=network.target
[Service]
# Type=forking
Type=simple
User=root
PIDFile=/data/var/lib/registry/logs/registry.pid
ExecStart=/data/var/lib/registry/bin/registry start
ExecStop=/data/var/lib/registry/bin/registry stop
Restart=on-abort
[Install]
WantedBy=multi-user.target
NOTE: Replace
/data/var/lib/registry/
in your case
systemctl daemon-reload
systemctl start registry-schema
systemctl stop registry-schema